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blondinia [14]
3 years ago
9

Describe the positive and negative interactions that affect populations in the tundra ecosystem

Biology
2 answers:
d1i1m1o1n [39]3 years ago
4 0

Answer:

Animals have adapted to the harsh weather conditions and long winters of the tundra.

Animals migrate to eat insects that live there year round.

Many animals in the tundra hibernate during the long, cold winter months.

Animals are most active in the short summer as the snow melts and shallow wetlands form.

SCORPION-xisa [38]3 years ago
3 0
Living organisms in any biome interact through a variety of relationships. Organisms compete for food, water, and other resources. Predators hunt their prey. Some organisms coexist in mutually beneficial relationships (symbiosis), while others harm organisms for their own benefit (parasitism). Still others benefit from a relationship that neither helps nor harms the other organism (commensalism).

Animals found in the Arctic tundra include herbivorous mammals (lemmings, voles, caribou, arctic hares, and squirrels), carnivorous mammals (arctic foxes, wolves, and polar bears), fish (cod, flatfish, salmon, and trout), insects (mosquitoes, flies, moths, grasshoppers, and blackflies), and birds (ravens, snow buntings, falcons, loons, sandpipers, terns, and gulls). Reptiles and amphibians are absent because of the extremely cold temperatures. While many of the mammals have adaptations that enable them to survive the long cold winters and to breed and raise young quickly during the short summers, most birds and some mammals migrate south during the winter
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How does the structure of dna encode genetic information?.
Viefleur [7K]

Answer:

genetic information is encoded as the sequence of nucleotides in DNA molecule

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Help please :)!!!
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Answer:

It would be A: a cell that has double the number of chromosomes as the parent cell

and if for some reason that is wrong then it could possibly be C and just use the same explanation.

Explanation:

This is because Haploid Gametes are the things that are produced during meiosis-which is a type of cell division which reduces the number of chromosomes in a parent diploid cell by half

7 0
3 years ago
List ten sources of water polution (LIST FORM, NOT LIKE AN ESSAY PLEASE!)
nadezda [96]

Answer:

  1. Industrial waste (toxic chemicals)
  2. Sewage (contains harmful bacteria)
  3. Oil spills from boats
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6 0
3 years ago
The number of mitochondria are increased during interphase. True or false?
Charra [1.4K]
The number of mitochondria are increased during interphase. True or False? The answer is True
6 0
3 years ago
CUGGCUAC
Degger [83]

Template DNA  5' GATTCAGAGA 3'

Complemntary strand    3' CTAAGTCTCT 5'  

5'   GAUUCAGAGA3'  mRNA strand

codes of mRNA GAU, UCA, UAG

Explanation:

5' GATTCAGAGA 3' is the example of DNA strand having the sequence.

The DNA strand is leading strand and is in 5' to 3' direction

the complementary DNA strand is formed in 3'to 5' direction as the strand of 5' to 3' acts as a tempelate for complementary strand.

During replication which is semiconservative a new template is formed by adding the nucleotides to the growing strand.

DNA synthesis always takes place in 5' to 3' direction.

5' GATTCAGAGA 3'

3'  CTAAGTCTCT 5'    Complemntary strand

Transcription is a process in which DNA sequence is transcribed into mRNA which carries codes for amino acids.

 The 5' to 3' strand is called sense strand

3' to 5' strand is called antisense strand. mRNA is transcribed from antisense strand and is a copy of sense strand.

so the transcribed DNA strand as mRNA will be shown as:

3'  CTAAGTCTCT 5'

5'   GAUUCAGAGA3'  mRNA strand

GAU codes for = Aspartate

UCA codes for = serine

GAG code for = glutamate (when due to mutation GAA will become GAG)

A will not code as it is not in triplets.

8 0
3 years ago
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